Analog Electronics
Diode and Its Applications
Practice questions from Diode and Its Applications.
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IncorrectIn the given circuit, the diodes are ideal. The current through the diode in milliamperes is ________ (rounded off to two decimal places).
Both
By nodal,
Final state as both and are .
All the elements in the circuit shown in the following figure are ideal. Which of the following statements is/are true?
When switch is , both and conducts and is reverse biased.
When switch is conducts and both and are reverse biased.
When switch is OFF, is reverse biased and both and conduct.
When switch is OFF, conducts, is reverse biased and conducts.
When S is ON, diode D3 gets reverse biased
Assume D1 is ON & D2 is OFF
I1 = 4A > 0 ∴D1 is ON
VD2 = -20 V < 0 ∴D2 is OFF
∴ Option (b) is correct
When S is OFF, D3 is ON due to 2A current source Assume D1 is OFF & D2 is ON
ID2 = 4A > 0 ∴ D2 is ON
VD1 = 20 – 40 = -20 < 0 ∴D1 is OFF
∴ Option (c) is correct